Viral LoadHIV InfectionsCD4 Lymphocyte CountHIV-1Anti-HIV AgentsRNA, ViralAntiretroviral Therapy, Highly ActiveViremiaAnti-Retroviral AgentsDNA, ViralAntiviral AgentsHIVTreatment OutcomeTime FactorsSimian Acquired Immunodeficiency SyndromeSimian immunodeficiency virusPlasmaCD4-Positive T-LymphocytesDrug Resistance, ViralAcquired Immunodeficiency SyndromeMacaca mulattaBranched DNA Signal Amplification AssayInfectious Disease Transmission, VerticalGenetic LoadDisease ProgressionGenotypePolymerase Chain ReactionDrug Therapy, CombinationHIV SeropositivityHepacivirusCoinfectionCohort StudiesCD8-Positive T-LymphocytesHepatitis C, ChronicVirus ReplicationVirus SheddingProspective Studies